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A21v — King’s (1927)
1.c4 e5 2.Nc3 f5 3.g3 Nf6 4.Bg2
Les coups candidats
Ambassadeurs : Bachofner, Andreas (3x), Bonoldi, Fabio (3x), Herzog, Klaus (3x), Norby, Peter H. (2x), Golombek, Harry (2x), Bogoljubow, Efim (2x), Smederevac, Petar (2x), Deutsch, Ludwig (2x)
4…c6 — 15.9% (434 parties)
Ambassadeurs : Horvath, Zoltan (4x), Andersen, Borge (3x), Arsenault, Michel (3x), Ujtelky, Maximilián Samuel Rudolf (2x), Stahlberg, Gideon (2x), Larsen, Bent Ravn (2x), Zlotnikov, Mikhail (2x), Marinangeli, Martin (2x)
4…d6 — 14.9% (409 parties)
Ambassadeurs : Muth, Matthias Potisarath (3x), Heidenfeld, Wolfgang (2x), Andrianantenaina Hardy Mamisoa (2x), Konopleva, Natalia (2x), Szabo, Janos (2x), Mack, Thomas, Dr. (2x), Ujtelky, Maximilián Samuel Rudolf (1x), Hort, Vlastimil (1x)
4…Bb4 — 13.1% (358 parties)
Ambassadeurs : Westerinen, Heikki M.J. (15x), Milov, Leonid (6x), Ljubisavljevic, Zivojin Z (5x), Berg, Klaus (3x), Smyslov, Vasily (3x), De La Villa Garcia, Jesus Maria (3x), Heberla, Bartlomiej (3x), Herzog, Klaus (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Nc6 4…c6 4…d6 4…Bb4
<1800 204 21% 22% 12% 10%
1800-2200 1383 24% 17% 16% 11%
2200-2600 669 26% 9% 15% 23%
2600+ 5 — 20% 20% 20%
Évolution par décennie (% des parties)
Décennie N parties 4…Nc6 4…c6 4…d6 4…Bb4
1950s 29 17% 21% 17% 3%
1960s 64 33% 19% 17% 5%
1970s 75 29% 9% 21% 4%
1980s 97 19% 11% 10% 24%
1990s 569 21% 17% 17% 14%
2000s 857 23% 18% 15% 12%
2010s 852 28% 14% 13% 13%
2020s 195 23% 12% 16% 16%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Nc6 28% 23% ▼ -5.2%
4…c6 14% 12% ▼ -2.6%
4…d6 13% 16% ▲ +3.6%
4…Bb4 13% 16% ▲ +3.3%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 2 parties
Tal, Mikhail — 2 parties
Karpov, Anatoly — 1 partie
Parties historiques
4…Nc6 — 24.3% (665 parties)
1951 — Golombek, Harry vs Bogoljubow, Efim — 1/2-1/2 — Bad Pyrmont GER
1951 — Golombek, Harry vs Bogoljubow, Efim — 1/2-1/2 — Bad Pyrmont GER
1952 — Gawlikowski, Stanislaw vs Wozniak, Kazimierz — 1/2-1/2 — Katowice POL
1956 — Saidy, Anthony vs Shaw, Steven J — 1-0 — Oklahoma City, OK USA
1958 — Walsh, James J vs Hardy, Otto Henry — 1-0 — Hastings ENG
4…c6 — 15.9% (434 parties)
1951 — Habermann, Ewald vs Schuster, Theodor — 0-1 — Stuttgart GER
1955 — Henin, Charles vs Levin, Egor — 1/2-1/2 — ?
1955 — Thiellement, Andre vs Burstein, Sylvain — 1-0 — Toulouse FRA
1957 — Bannik, Anatolij vs Abanin, Vladimir — 1/2-1/2 — Moskou ch-URS
1957 — Stoliar, Efim Samoilovich vs Ragozin, Viacheslav — 1-0 — Leningrad RUS
4…d6 — 14.9% (409 parties)
1951 — Vaitonis, Povilas vs Holowach, Walter — 1-0 — Vancouver
1955 — Perkins, Nicolas Angelo vs Walker, Jack — 1-0 — Aberystwyth ch-BCF
1958 — Joyner, Lionel vs Ribeiro, Joao — 1/2-1/2 — Munich GER
1958 — Bagby, C. vs Pafnutieff, W. — 1-0 — San Francisco, CA USA
1958 — Lombardy, William J vs Heidenfeld, Wolfgang — 1-0 — Munich GER
4…Bb4 — 13.1% (358 parties)
1953 — Maicherczyk, Georg vs Ahues, Carl — 0-1 — Leipzig GER
1962 — Gross, Georg vs Bolton, Alyssa — 0-1 — Eastern Open
1967 — Gotay, J vs Rossolimo, Nicolas — 0-1 — San Juan
1969 — Colon Romero, Arturo vs Larsen, Bent Ravn — 0-1 — San Juan
1971 — Ost-Hansen, Jacob vs Herzog, Adolf — 1-0 — Athens GRE